YANKTON, SD 57078 Weather Forecast & Current Conditions

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YANKTON, SD
Current Weather

4:56 PM CDT AUG 29, 2026
Clear
91°F
Feels Like: 100°F
Dewpoint: 73°F
Rel. Hum.: 56%
Visibility: 10 miles
Wind: S at 12 mph
Pressure: 29.71 inches
Last 72 hours

Local Area Snow Depth

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YANKTON, SD 57078
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy this evening, then becoming mostly cloudy. Lows in the lower 70s. South winds 5 to 10 mph. Heat index values in the upper 90s early this evening.
SUNDAY
Mostly sunny. Hot with highs in the mid 90s. South winds 5 to 10 mph.
SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph.
MONDAY
Partly sunny. Humid with highs around 90. Northwest winds 5 to 10 mph.
MONDAY NIGHT
Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. South winds around 5 mph, becoming east after midnight. Chance of rain 20 percent.
TUESDAY
Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.
TUESDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. Chance of rain 60 percent.
WEDNESDAY
Mostly sunny. Highs in the upper 80s.
WEDNESDAY NIGHT
Mostly clear in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 30 percent.
THURSDAY
Partly sunny. Highs in the upper 80s.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 60s.
FRIDAY
Mostly sunny. Highs around 90.
FRIDAY NIGHT
Mostly clear in the evening, then becoming mostly cloudy. Lows in the upper 60s.

Visible Weather Satellite
YANKTON, SD 57078
Infrared Weather Satellite
YANKTON, SD 57078
NEXRAD Weather Radar
YANKTON, SD 57078

YANKTON, SD 3 hourly weather forecast

weather forecast created  5:00 AM PDT  8/29/2026
Saturday
29 AUG 2026
YANKTON, SD 57078 weather forecast Day 1, 12 hours 1 PM 88° 92° Partly Cloudy 2%

0% Thunder
( 10% severe)
SSW   13 52% 68°
High 93° YANKTON, SD 57078 weather forecast Day 1, 15 hours 4 PM 92° 96° Clear SSW   12 46% 68°
Partly Cloudy



YANKTON, SD 57078 weather forecast Day 1, 18 hours 7 PM 89° 95° Partly Cloudy 5%

0% Thunder
( 14% severe)
SSW   9 56% 71°
YANKTON, SD 57078 weather forecast Day 1, 21 hours 10 PM 80° 83° Mostly Cloudy SSE   7 74% 71°
Sunday
30 AUG 2026
YANKTON, SD 57078 weather forecast Day 2, 0 hours 1 AM 77° 79° Mostly Cloudy 6%

0% Thunder
( 16% severe)
SW   6 76% 69°
Low 72° YANKTON, SD 57078 weather forecast Day 2, 3 hours 4 AM 75° 75° Mostly Cloudy SE   5 79% 68°
High 95° YANKTON, SD 57078 weather forecast Day 2, 6 hours 7 AM 73° 73° Mostly Cloudy 4%

0% Thunder
( 8% severe)
NE   5 81% 67°

Partly Cloudy



YANKTON, SD 57078 weather forecast Day 2, 9 hours 10 AM 81° 84° Partly Cloudy S   6 67% 69°
YANKTON, SD 57078 weather forecast Day 2, 12 hours 1 PM 90° 94° Clear 3%

0% Thunder
( 14% severe)
SSW   8 49% 68°
YANKTON, SD 57078 weather forecast Day 2, 15 hours 4 PM 93° 97° Partly Cloudy SSW   12 43% 67°
YANKTON, SD 57078 weather forecast Day 2, 18 hours 7 PM 90° 95° Partly Cloudy 1%

0% Thunder
( 17% severe)
SSW   10 50% 69°
YANKTON, SD 57078 weather forecast Day 2, 21 hours 10 PM 81° 84° Partly Cloudy S   7 69% 70°
Monday
31 AUG 2026
YANKTON, SD 57078 weather forecast Day 3, 0 hours 1 AM 77° 79° Mostly Cloudy 3%

0% Thunder
( 14% severe)
SSW   6 76% 69°
Low 72° YANKTON, SD 57078 weather forecast Day 3, 3 hours 4 AM 75° 75° Partly Cloudy W   7 76% 67°
High 90° YANKTON, SD 57078 weather forecast Day 3, 6 hours 7 AM 72° 72° Mostly Cloudy 8%

0% Thunder
( 8% severe)
NW   7 84% 67°

Mostly Cloudy



YANKTON, SD 57078 weather forecast Day 3, 9 hours 10 AM 78° 80° Mostly Cloudy NNW   9 71% 68°
YANKTON, SD 57078 weather forecast Day 3, 15 hours 1 PM 85° 87° Partly Cloudy 4%

0% Thunder
( 17% severe)
NA   8 51% 65°
YANKTON, SD 57078 weather forecast Day 3, 18 hours 4 PM 89° 91° Partly Cloudy W   6 44% 64°
YANKTON, SD 57078 weather forecast Day 3, 21 hours 7 PM 86° 88° Partly Cloudy     S   5 50% 65°

YANKTON, SD extended weather forecast

Tuesday
1 SEP 2026
Wednesday
2 SEP 2026
Thursday
3 SEP 2026
Friday
4 SEP 2026
Saturday
5 SEP 2026
Low 65° Low 64° Low 63° Low 63° Low 62°
High 87° High 87° High 87° High 85° High 84°
YANKTON, SD 57078 weather forecast Day 4 YANKTON, SD 57078 weather forecast Day 5 YANKTON, SD 57078 weather forecast Day 6 YANKTON, SD 57078 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Overcast
39% Rain
Partly Cloudy
18% Rain
Partly Cloudy
37% Rain
Clear
19% Rain
Partly Cloudy
27% Rain
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